Table 1. Distribution of animals with different stages of fibrosis.

Weeks	Animal Number (n)
	Control					Study
	Stages of fibrosis					Stages of fibrosis
	F0	F1	F2	F3	F4	F0	F1	F2	F3	F4
4	2	0	0	0	0	0	4	1	0	0
8	2	0	0	0	0	0	3	2	0	0
12	2	0	0	0	0	0	2	3	0	0
16	2	0	0	0	0	0	1	4	0	0
20	2	0	0	0	0	0	0	4	1	0
24	2	0	0	0	0	0	0	3	2	0
28	2	0	0	0	0	0	0	0	4	1
32	2	0	0	0	0	0	0	0	3	2
36	2	0	0	0	0	0	0	0	2	3
40	2	0	0	0	0	0	0	0	0	5
SUM	20	0	0	0	0	0	10	17	12	11